Home / 19,861.04-27,408.71-10,786.77

Finding the Fourth Proportional to 19,861.04, 27,408.71 and 10,786.77

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Solution

The fourth proportional to 19,861.04, 27,408.71 and 10,786.77 is: 14,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.04 : 27,408.71 = 10,786.77 : x
  2. Step 2: Convert to fraction form
    19,861.04/27,408.71 = 10,786.77/x
  3. Step 3: Cross multiply
    19,861.04x = 27,408.71 × 10,786.77
  4. Step 4: Simplify right side
    19,861.04x = 295,651,477.73
  5. Step 5: Solve for x
    x = 295,651,477.73/19,861.04
  6. Step 6: Final answer
    x = 14,886.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.